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Maintenance

10

Electrical Linear Actuators for Continuous Modulating Control LME620AI / LME620AN (Contrac)

43/68-13 EN

5.2.2

Motor shaft sealing ring

The motor shaft sealing ring prevents that debris or dirt get into the motor housing.

Once the stator is out, use two appropriate hooks (1) to pull the motor sealing ring (2) out; see fig. 7. 

5.2.2.1

Removal

Fig. 7:

5.2.2.2

Installation

Fig. 8:

- grease the new sealing ring and press it in the flange as shown in fig. 8.
- make sure that the „open“ part of the sealing ring points towards the interior of the gearbox; see fig. 8.
- use appropriate squeezer or similar device to press the sealing ring uniformly into the flange (see right

part of fig. 8)

5.2.3 Motor installation
- put the stator into the actuator housing
- make sure, the hose protected cables are within the groove (see fig. 9)
- put the rotor with the brake body into the stator housing
- tighten the 4 motor screws
- tighten the 4 grub screws to tense rotor / stator housing
- use appropriate retainer (DELO-ML 5228 or LOCTITE 243; both medium-firm; detachable) to secure

the grub screws 

(refer to fig. 5 + 6 for reference no.)

1

(68de0015)

sleeve

flange

sealing ring

interior of

squeezer

gearbox

mounting
sleeve

gearbox

(68de0007)

Содержание LME620-AI

Страница 1: ...P R O F I B U S PROCESS FIELD BUS Service Instruction 43 68 13 EN Electrical Linear Actuators for Continuous Modulating Control LME620AI LME620AN Contrac Rated Force 4 kN 900 lbf...

Страница 2: ...Manufacturer ABB Automation Products GmbH Schillerstr 72 32425 Minden Germany Tel 49 551 905 534 Fax 49 551 905 555 Copyright 2005 by ABB Automation Products GmbH We reserve the right to technical ame...

Страница 3: ...trical Connection 11 General 11 Covers 13 Wiring diagrams Integrated electronic unit 13 Wiring diagram 14 Fuses 16 Exchange of position sensor 19 Dismounting 19 Mounting 19 Electrical Test Values 20 T...

Страница 4: ...to the freight carrier and your ABB rep resentative Verify that the items on the packing list or bill of lading agree with your own Symbol Signal Word Definitions STOP DANGER DANGER indicates an immin...

Страница 5: ...fied personnel When working on the actuator itself or the electronics always observe the locally valid accident pre vention regulations and the regulations concerning the construction of technical ins...

Страница 6: ...rated electronics LME620 AN for separate electronics 3 1 LME620 AI Fig 2 LME620AI with dismounted electronic unit 3 2 LME620AN Fig 3 LME620AN with available separate electronic units LME120AI hood wit...

Страница 7: ...rques movements temperatures etc and derives the remaining operating time until the next routine maintenance is required Use the configuration program for viewing this information CAUTION All maintena...

Страница 8: ...Electrical Linear Actuators for Continuous Modulating Control LME620AI LME620AN Contrac 43 68 13 EN 5 1 Sectional view Fig 4 Sectional view of LME620 motor brake handwheel mechanism thrust rod sensor...

Страница 9: ...or position may be changed accidentally by the external load on the drive when the brake is released or the motor is removed remove the rear cover cover with electronics at LME620 AI unscrew the 4 mot...

Страница 10: ...ring points towards the interior of the gearbox see fig 8 use appropriate squeezer or similar device to press the sealing ring uniformly into the flange see right part of fig 8 5 2 3 Motor installati...

Страница 11: ...between the two plates 3 4 press plate 1 down tighten the two grub screws 1 6 Electrical Connection 6 1 General The cable between actuator and electronic unit is connected to the electronic unit via...

Страница 12: ...f the actuator does not affect the process 6 1 2 Removal of integrated electronic unit NOTICE If you want to use a faultless running electronic unit for another actuator it is absolutely necessary to...

Страница 13: ...manner Continue with the remaining screws Finally tighten the screws in the same order This will ensure a tight seal 6 3 Wiring diagrams Integrated electronic unit 6 3 1 HART The electrical connectio...

Страница 14: ...Uv 24V RB 28 29 17 18 19 20 21 22 23 24 17 18 19 20 21 22 23 24 U V W Br Br 1 2 1 2 3 13 14 M 3 H1 H2 PE r00350x1 one side screening ext fuse screen connected at both ends mains sub distribution boar...

Страница 15: ...w terminals red green red green Contrac Contrac electronic unit plug plug actuator 24V Uv 30 RB 31 I U 26 27 1 7 2 8 3 9 4 10 13 5 11 14 6 12 15 L N U V W Br Br PE 17 18 19 20 21 22 23 24 17 18 19 20...

Страница 16: ...temperature 5 x 20 mm main pcb 2 A slow EAN 823 External fuse external 16 A slow Mains fuse 5 x 20 mm in connection chamber 6 7 A slow 3 15 A slow Analog setpoint input 5 x 20 mm in connection chambe...

Страница 17: ...Control LME620AI LME620AN Contrac 17 6 5 1 2 EAN823 Fig 21 Fuses in EAN823 tapholes signal terminals motor terminals terminals for mains fuse fuse for heater fuse for analogue setpoint input cable mai...

Страница 18: ...lectrical Linear Actuators for Continuous Modulating Control LME620AI LME620AN Contrac 43 68 13 EN 6 5 1 3 EAS822 Fig 22 Fuses in EAS822 dig output mains fuses fuse fuse f DO1 fuse f DO2 fuse f DO3 De...

Страница 19: ...le on the sensor pcb 7 2 Mounting The toothed gear pair of the position sensor is held in place by a tension spring 3 to ensure a back lash free contact when the direction of rotation is reversed set...

Страница 20: ...ocess Depending on the actuator version proceed as follows 8 3 1 LME620AI integrated electronic unit remove the plug remove the actuator hood with electronic unit check pins at pin carrier see fig 20...

Страница 21: ...eparated electronic unit refer to pin carrier of actuator plug see fig 17 19 Resistance Winding resistance 5 at 20 C motor pin 6 7 7 8 6 8 Winding resistance 5 at 20 C motor pin 1 2 2 3 1 3 3 4 Ohm Wi...

Страница 22: ...l panel see also electronic unit instruction both LED flash alternatively actuator failure e g out of adjusted range actuator can not be moved via command buttons or commands from the process control...

Страница 23: ...rol panel is ON No No Yes E1 3 internal mains fuse ok E1 4 power supply ON E1 5 voltage level acc to data label R1 3 replace fuse see E1 5 if the fuse blows again R1 4 Hook up the volt age supply chec...

Страница 24: ...g acc to wiring diagram see chpt 6 3 No E1 1 Yes No Yes E 2 3 Disconnect actuator and valve Actuator can be moved No Yes E3 4 Motor winding resistance acc to table 3 E 3 5 Check brake Click sound audi...

Страница 25: ...10 9 E 3 3 Test mode ac tive D 2 chpt 10 9 Yes Yes No No R 3 1 Set actuator to AUTO mode via confi soft ware If the actuator is still in MAN mode after switching on again change the set tings for Beha...

Страница 26: ...easurable and polarity ok No Yes Yes No Yes R4 1 De activate digital input contacts C 4 chpt 10 9 or provide DC 24 V high signal to dig input 1 R4 2 Replace fuse R4 3 Provide setpoint signal and or ch...

Страница 27: ...s E4 2 pulses are measurable and po larity ok Yes R5 2 Electronic unit defective R5 1 provide controller signal and check wiring No E6 1 LED signal Failure E 1 1 Yes E6 2 sensor failure E6 3 sensor me...

Страница 28: ...d position over run Actuator moves into an end position once it reaches a setpoint de activate close tight in the software settings for modulating control near the end position Actuator position does...

Страница 29: ...the subjects in chpt 10 refer to the user interface Use the numbering in table 4 to facilitate the navigation The user interface software does not use any numbering in the menus Table 4 Trouble shooti...

Страница 30: ...dify the information contained herein without notice Printed in the Fed Rep of Germany 12 05 ABB 2005 ABB Ltd Salterbeck Trading Estate Workington Cumbria CA14 5DS UK Tel 44 0 1946 830 611 Fax 44 0 19...

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